Hammer-support-for crushers and pulverizers.



Patented Mar., 27, 1900.

No. 646,278. E. H. FRIKEY..l

HAMMER SUPPRT FOR CRUSHERS AND P-LyERIZERS.

(Applieacion aledsepz. 2, 189s.) (No Modal.)

Ivo

j NITE STATES ATEN ENCE@ EDVARD I-I. FRIOKEY, OF ST. LOUIS, MISSOURI,ASSIGNOR TO THE VIL LIAMS PATENT ORUSHER AND PULVERIZER COMPANY, OF SAMEPLACE.

HAMMER-SUPPORT' FOR CRUSHERS AND FULVERIZERS.

srncrrrcnrrron forming pea ef Lettere Patent No; Geraete, dated Merener, 1900. Application filed `September 2,1898. rSerial No; 690,068. (Nomodel.)

To all whom t may concern:

Be it known that I, EDWARD H. FRICKY, a citizen of the United States,residing at the city of St. Louis, State of Missouri, have invented acertain new and useful Improvement in Hammer-Supports for Crushers andPulverizers, of which the following is a full, clear, and exactdescription, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, forming part of this specification, in which-Figure l is a Vertical sectional view thron gh a machine transversely tothe shaft. Fig. 2 is a detailed face View of the ,hammer-disk, and Fig.3 is a side elevational view of the same.

This invention relates to a new and useful improvement inhammer-supports for crushers and pulverizers of that type in which thehammers are pivotally mounted on disks which revolve in unison, causingthe hammers to assume a radial position in motion, due to centrifugalforce. The material to be operated upon is fed into the machine and isprimarily crushed by the hammers on a deadplate, after which the hammerscarryit rearwardly over a grinding-surface (shown in this instance as aconcentric cage) composed of a series of parallel transversely-arrangedbars, and when the material is reduced sufficiently fine it fallsbetween the bars through the bottom of the machine, whence it may becarried to any desirable point.

In operating on hard substances the outer ends of the hammers wear-thatis, the hammers become short from constant usage-and it is necessaryunder such conditions to introduce new hammers or provide means toextend the worn shortened ones to make them efficient.

This present invention consists in the provision of such means, itsdistinguishing feature being series of openings in the disk plates of'gradually-increasing radii, whereby when the hammer is worn and is nolonger efficient in its shortened condition its pivot is removed andinserted in an opening located at a greater distance from the axis ofThese openings may he so ar- 5o the machine; B, the shaft; C, the disksor hammer-supports; I), the hammers; d, the pivots, preferably in theform of throughbolts, upon which the hammers are mounted; E, the coverof the machine; F, the deadplate, and G the grinding=snrface, in theform 6o of a concentric cage, although with respect to thisgrinding-surface other forms could be employed.

Disks O are keyed or otherwise secured to .shaft B and are provided withseries of openings 0,-Which gradually increase in distance from thecenter of the shaft in eccentric lines.

-This is the preferred arrangement of openings c, as it providessufficient metal for 'strength around them, yet increasing the radialdistance by small degrees as the pivots are adj usted successively inthe holes. Other arrangements of the openings may be employed, however.

When the machine is first assembled, the hammers are pivoted in the setof holes nearest the shaft, and as their points wear their pivot-pointis changed to the next opening, and so on as the wear increases, eachadj ustment of the pivot-points acting, in effect, to outwardly extendthe striking-points of said hammers. The proper distance between thestriking-points of the hammers and the deadplate and cage productive ofthe best results is thus maintained.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is V l. The combination with a rotary shaft, of

ham mer-supports arranged thereon, said sup- 9o ports having series ofopenings of gradually= increasing distances from the axis, hammers, andpivots for said hammers, which pivots cooperate with, or are adapted tolit in dier-v ent openings in a series in said supports, to

adjust thestrikingpoints of said hammers, substantially as described.

2. lIn a crusher, the combination with a rotary shaft, a set of pivotedhammers and a l support is adjustable toward or from the axisdead-plate, of a hammer-support mounted on the shaft, consisting of adisk-plate having a series of holes arranged in a line ofgraduallyincreasing distances from the axis, whereby the pivot-points ofsaid hammers are adjustably located, substantially as described.

3. The combination with the casing, of a shaft, supports having seriesof openings of gradually-increasing radii, pivoted hammers Whosepivot-points are adjustable in said series of openings, agrinding-surface, and an inclined dead-plate upon which the material isprimarily crushed by the hammers, said hammers carrying the materialback and reducing it on I(he grinding-surface, substanof rotation ofsaid support; substantially as described.

5. The combination with a hammer-support C, having two or more iixedpoints o'i' attachment located at varying,r distances from the axis ofrotation o'i' said support, and a hammer removably pivoted to saidsupport at one of said points of attachment; substantially as described.

6. A Crusher comprising a casing, a rotary shaft, a hammer-support onsaid shaft, having separate points of attachment for the hammers andhammers adjustably pivoted separately and independently to saidhammer-support to Vary the reach of said hammers, substantially asdescribed.

In testimony whereof I hereunto aiiix my signature, in the presence oftwo witnesses, this 30th day of August, 1898.

EDWARD H. FRICKEY.

Vitnesses:

F. R. CORNWALL, HUGH K. WAGNER.

